BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 229 58.4%
2 United States 60 15.3%
3 Germany 38 9.7%
4 Canada 27 6.9%
5 Russia 7 1.8%
6 Singapore 7 1.8%
7 Australia 6 1.5%
8 Hong Kong 5 1.3%
9 Ireland 4 1%
10 Taiwan 4 1%
11 Luxembourg 2 0.5%
12 Venezuela, Bolivarian Republic of 2 0.5%
13 Macao 1 0.3%